package com.ming.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ming.reggie.common.R;
import com.ming.reggie.pojo.Employee;
import com.ming.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    private final EmployeeService employeeService;

    public EmployeeController(EmployeeService employeeService) {
        this.employeeService = employeeService;
    }

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){



        //  2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //  3、如果没有查询到则返回登录失败结果
        if (emp == null){
            return R.error("登陆失败");
        }

        //  1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password= DigestUtils.md5DigestAsHex(password.getBytes());

        //  4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("登陆失败");
        }

        //  5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //  6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        //设置初始密码123456，然后进行md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));


        employeeService.save(employee);

        return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        Page pageInfo = new Page(page, pageSize);
        LambdaQueryWrapper<Employee> lambdaQueryWrapper = new LambdaQueryWrapper();
        lambdaQueryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        lambdaQueryWrapper.orderByDesc(Employee::getUpdateTime);
        employeeService.page(pageInfo,lambdaQueryWrapper);
        return R.success(pageInfo);
    }

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

        employeeService.updateById(employee);

        return R.success("员工信息修改成功");

    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if (employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到该员工的信息");
    }
}
















